//=======================================================================
//
//  Copyright (c) 2003 Institute of Transport,
//                     Railway Construction and Operation,
//                     University of Hanover, Germany
//
//  Author: Juergen Hunold
//
//  Use, modification and distribution are subject to the
//  Boost Software License, Version 1.0. (See accompanying file
//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
//=======================================================================

#include <boost/config.hpp>

#include <iostream>
#include <vector>
#include <set>
#include <utility>
#include <algorithm>

#define VERBOSE 0

#include <boost/utility.hpp>
#include <boost/graph/property_iter_range.hpp>
#include <boost/graph/graph_utility.hpp>
#include <boost/graph/random.hpp>
#include <boost/pending/indirect_cmp.hpp>

#include <boost/random/mersenne_twister.hpp>

enum vertex_id_t
{
    vertex_id = 500
};
enum edge_id_t
{
    edge_id = 501
};
namespace boost
{
BOOST_INSTALL_PROPERTY(vertex, id);
BOOST_INSTALL_PROPERTY(edge, id);
}

#include "graph_type.hpp" // this provides a typedef for Graph

using namespace boost;

/*
  This program tests the property range iterators
 */

using std::cerr;
using std::cout;
using std::endl;
using std::find;

int main(int, char*[])
{
    int ret = 0;
    std::size_t N = 5, E = 0;

    typedef ::Graph Graph;
    Graph g;
    typedef boost::graph_traits< Graph >::vertex_descriptor Vertex;
    typedef boost::graph_traits< Graph >::edge_descriptor Edge;

    int i, j;
    std::size_t current_vertex_id = 0;
    std::size_t current_edge_id = 0;

    property_map< Graph, vertex_id_t >::type vertex_id_map = get(vertex_id, g);
    (void)vertex_id_map;

    property_map< Graph, edge_id_t >::type edge_id_map = get(edge_id, g);
    (void)edge_id_map;

    for (std::size_t k = 0; k < N; ++k)
        add_vertex(current_vertex_id++, g);

    mt19937 gen;

    for (j = 0; j < 10; ++j)
    {

        // add_edge
#if VERBOSE
        cerr << "Testing add_edge ..." << endl;
#endif
        for (i = 0; i < 6; ++i)
        {
            Vertex a, b;
            a = random_vertex(g, gen);
            do
            {
                b = random_vertex(g, gen);
            } while (a == b); // don't do self edges
#if VERBOSE
            cerr << "add_edge(" << vertex_id_map[a] << "," << vertex_id_map[b]
                 << ")" << endl;
#endif
            Edge e;
            bool inserted;
            boost::tie(e, inserted) = add_edge(a, b, current_edge_id++, g);
#if VERBOSE
            std::cout << "inserted: " << inserted << std::endl;
            std::cout << "source(e,g)" << source(e, g) << endl;
            std::cout << "target(e,g)" << target(e, g) << endl;
            std::cout << "edge_id[e] = " << edge_id_map[e] << std::endl;
            print_edges2(g, vertex_id_map, edge_id_map);
            print_graph(g, vertex_id_map);
            std::cout << "finished printing" << std::endl;
#endif
        }
        ++E;
    }

    typedef boost::graph_property_iter_range< Graph, vertex_id_t >::iterator
        TNodeIterator;

    typedef boost::graph_property_iter_range< Graph, edge_id_t >::iterator
        TLinkIterator;

    TLinkIterator itEdgeBegin, itEdgeEnd;

    boost::tie(itEdgeBegin, itEdgeEnd) = get_property_iter_range(g, edge_id);

    cout << "Edge iteration:" << endl;
    for (; itEdgeBegin != itEdgeEnd; ++itEdgeBegin)
    {
        cout << *itEdgeBegin;
    }
    cout << endl;

    TNodeIterator itVertexBegin, itVertexEnd;

    boost::tie(itVertexBegin, itVertexEnd)
        = get_property_iter_range(g, vertex_id);

    cout << "Vertex iteration:" << endl;
    for (; itVertexBegin != itVertexEnd; ++itVertexBegin)
    {
        cout << *itVertexBegin;
    }
    cout << endl;

    return ret;
}
